DEQX User Manual
10.7.2 Subwoofer location
If a subwoofer or subwoofers are used, the same principle applies. If possible, choose
subwoofer locations that enhance bass output. Often, one or both corners behind the
speakers will work well.
The example below shows the response of a subwoofer at two different locations in the
room. While the dotted red response initially looks flattest, it has a suckout in the
frequency range from 75 to 100 Hz that cannot be effectively addressed with EQ. The
solid blue curve has a peak at 48 Hz and may – without room EQ – sound a little boomy.
However, once the low frequency response curve has been corrected with room EQ, the
end result is likely to be better.
10.7.3 Microphone location
To check that the microphone is the same distance
from both speakers, click the Time button in the
Chart toolbar. Zoom in on the plots to clearly display
the impulse responses of the left and right speakers. It is not uncommon to see a
difference of a tenth or two of a millisecond between the two impulse response peaks,
due to the microphone not being positioned exactly equidistant from the two speakers.
If the difference between the two speakers is more than this, check your microphone
position and repeat the measurement.
To Next Page
Loading...